OS crashes when the power manager shuts down the screen

[Donmatas]

I configure the power manager in order to save energy so the screen shuts down after a while. When I try to wake it up, it turns on but all the system is frozen (except for the coursor that has movment but can't click anything). This only happens with Natty (no problem whith Lucid).

###From gpm.log:
TI:19:16:46 TH:0x8160168 FI:gpm-backlight-kbd.c FN:gpm_backlight_kbd_brightness_evaluate_and_set,269
 - ERROR: Method "GetBrightness" with signature "" on interface "org.freedesktop.UPower.KbdBacklight" doesn't exist

*** WARNING ***
TI:19:16:46 TH:0x8160168 FI:gpm-backlight-kbd.c FN:gpm_backlight_kbd_brightness_evaluate_and_set,273
 - GetBrightness failed!

---//---
~$ lsb_release -rd
Description: Ubuntu 11.04
Release: 11.04

~$ uname -a
Linux xxx 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux

I do not know if it is usefull, but here is part of my "lspci"

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

[Fabio Marconi (fabiomarconi)]

To get the debugging information from g-p-m, execute the following command:

killall gnome-power-manager && gnome-power-manager --verbose 2>&1 | tee ~/gpm.log

This kills gnome-power-manager and re-executes it in verbose mode, saving the log file gpm.log to your home directory. Please attach this file to the report,using the button below 'Add attachment or patch'.
Thanks
Fabio

[Donmatas (elcorreodematias)]

thank you Fabio.
After the test, I realized that the bug looks to happen only when the machine is running with battery (I am not sure about this, but at least it is what it happens this time).

Here is the file that you ask for.

Best,
DM

[Fabio Marconi (fabiomarconi)]

Hello
just a last thing, please reproduce the bug, reboot and attach here
/var/log/kern.log
/var/log/kern.log.1
Thanks
Fabio

[Donmatas (elcorreodematias)]

Fabio:
I am not sure if I understand what I should do. Do I have to reproduce again the bug and then reboot and attach the files that you are asking for? Do I have to do it normaly or in verbose mode? Could you explain me step by step what I have to do?

thanks
DM

[Fabio Marconi (fabiomarconi)]

Hello Donmatas
Sorry, reproduce the bug, restart the pc, came to this page and click on the below button 'Add attachment or patch' and browse to the file
/var/log/kern.log
when the file is attached click again the Add attachment button and attach /var/log/kern.log.1
Thanks
Fabio

[Donmatas (elcorreodematias)]

Fabio:

Here are the files that you ask for. I hope that will be usefull.

I have to say that the bug does not occured when the laptop is plugged to the AC. When it is running whith batteries it happens but only when I configure the gnome-power-manager to turn off the screen after 10 min. If I configure it to 5 minutes it works fine (i do not know why, or if it was just a coincidence)

thanks
DM

[Donmatas (elcorreodematias)]

correction, the bug happens always, even when the laptop is connected to the AC and with any minutes' configuration (how mysterious!)

[Donmatas (elcorreodematias)]

Fabio,

it looks that the problem have been fixed with the last updates. I will report any further problem.

Thanks
DM

[Fabio Marconi (fabiomarconi)]

Hello Donmatas
Thanks for the reply, i set the status of this report as 'Fix Rlelased'.
Please if you encounter again this problem revert the status back to New.
Thanks again and feel free to report any other bug you can find
Fabio